no code implementations • 10 Oct 2023 • Kyle Gilman, David Hong, Jeffrey A. Fessler, Laura Balzano
Streaming principal component analysis (PCA) is an integral tool in large-scale machine learning for rapidly estimating low-dimensional subspaces of very high dimensional and high arrival-rate data with missing entries and corrupting noise.
no code implementations • 9 Jun 2020 • Edgar Dobriban, Hamed Hassani, David Hong, Alexander Robey
It is well known that machine learning methods can be vulnerable to adversarially-chosen perturbations of their inputs.
no code implementations • 24 Apr 2020 • Shunbo Lei, David Hong, Johanna L. Mathieu, Ian A. Hiskens
Commercial building heating, ventilation, and air conditioning (HVAC) systems have been studied for providing ancillary services to power grids via demand response (DR).
no code implementations • 4 Jun 2019 • Tamara G. Kolda, David Hong
The stochastic gradient is formed from randomly sampled elements of the tensor and is efficient because it can be computed using the sparse matricized-tensor-times-Khatri-Rao product (MTTKRP) tensor kernel.
3 code implementations • 21 Feb 2019 • Il Yong Chun, David Hong, Ben Adcock, Jeffrey A. Fessler
Convolutional analysis operator learning (CAOL) enables the unsupervised training of (hierarchical) convolutional sparsifying operators or autoencoders from large datasets.
no code implementations • 22 Aug 2018 • David Hong, Tamara G. Kolda, Jed A. Duersch
Tensor decomposition is a fundamental unsupervised machine learning method in data science, with applications including network analysis and sensor data processing.
no code implementations • 14 Sep 2017 • John Lipor, David Hong, Yan Shuo Tan, Laura Balzano
We present a novel geometric approach to the subspace clustering problem that leverages ensembles of the K-subspaces (KSS) algorithm via the evidence accumulation clustering framework.
no code implementations • 12 Oct 2016 • David Hong, Laura Balzano, Jeffrey A. Fessler
Principal Component Analysis (PCA) is a method for estimating a subspace given noisy samples.